BTW, I uploaded the CL[1] to unflag it, but both Reviewers (Olivier Flückiger and Igor Sheludko) that helped me through the development of the feature are OOO, do you know who else could I ask for review instead?
[1] - https://chromium-review.googlesource.com/c/v8/v8/+/8415348 > On Sep 16, 2026, at 8:06 AM, Caio Lima <[email protected]> wrote: > > Thank you very much for reviewing this request. > >> On Sep 16, 2026, at 6:08 AM, Philip Jägenstedt <[email protected]> wrote: >> >> LGTM3 >> >> Looks like the tests are at >> https://wpt.fyi/results/third_party/test262/test/language?label=master&label=experimental&aligned&q=import-defer >> and still failing because the flag hasn't been flipped yet. If there are >> test failures after flipping the flag, can you look into getting them to >> 100%? (Notably, there's one test failing in Safari, will we pass it?) > > Sure. AFAICT, we are passing all Test262 on current implementation, but if I > see any failure, I’ll fix it. > >> >> On Tue, Sep 15, 2026 at 6:16 PM Mike Taylor <[email protected] >> <mailto:[email protected]>> wrote: >>> LGTM2 >>> >>> On 9/15/26 12:14 p.m., 'Dan Clark' via blink-dev wrote: >>>> Thank you! LGTM1 >>>> >>>> On Tuesday, September 15, 2026 at 6:14:21 AM UTC-7 Caio Lima wrote: >>>>> >>>>> >>>>>> On Sep 14, 2026, at 6:12 PM, Dan Clark <[email protected] <>> wrote: >>>>>> >>>>>> > Web developers: No signals >>>>> >>>>> I’ve found this documented signal on proposal’s repo >>>>> https://github.com/tc39/proposal-defer-import-eval/issues/18. It’s >>>>> important to notice that since it’s from 2023, it predates the `import >>>>> defer` syntax, but the semantics is the same of current proposal. >>>>> In addition to that, on >>>>> https://2025.stateofjs.com/en-US/features/#js_new_features it’s the most >>>>> popular feature that is not in browsers yet other than decorators, and >>>>> there are some articles and podcasts about it, like >>>>> https://byteiota.com/typescript-59-import-defer-lazy-imports/ (it talks >>>>> mostly about TS import defer) and https://youtu.be/_x5f35JVKt8?t=338. >>>>> >>>>>> >>>>>> Is there any sign of developer interest we can point to here? >>>>>> >>>>>> > Will this feature be supported on all six Blink platforms (Windows, >>>>>> > Mac, Linux, ChromeOS, Android, and Android WebView)? >>>>>> > No >>>>>> >>>>>> I'd expect this to be shipping everywhere -- should this say "yes"? >>>>> >>>>> Sorry, I overlooked this. It’s yes. >>>>> >>>>>> >>>>>> -- Dan >>>>>> On Monday, September 14, 2026 at 9:18:46 AM UTC-7 Caio Lima wrote: >>>>>>> Contact emails >>>>>>> [email protected] <>, [email protected] <> >>>>>>> >>>>>>> Explainer >>>>>>> https://github.com/tc39/proposal-defer-import-eval >>>>>>> >>>>>>> Specification >>>>>>> https://tc39.es/proposal-defer-import-eval >>>>>>> >>>>>>> Summary >>>>>>> `import defer` allows lazily evaluating ES modules, to reduce the >>>>>>> startup impact of modules that are not actually needed for the first >>>>>>> JavaScript execution. This provides an easier-to-use alternative to >>>>>>> dynamic import. While dynamic import provides more benefits, as it >>>>>>> allows deferring loading of modules rather than just evaluation, it has >>>>>>> a lot of friction due to its asynchronous nature, and thus it's not >>>>>>> always usable. The `import defer` TC39 proposal follows the same syntax >>>>>>> as `import source`, but it only works with namespace imports: ``` >>>>>>> import defer * as namespace from "./some-module.js" ``` The module will >>>>>>> be synchronously executed on property access on the module namespace >>>>>>> object. To allow synchronous execution, not all of `./some-module.js`'s >>>>>>> dependency tree will be deferred. Modules that contain top-level await >>>>>>> will be eagerly executed, leaving only the synchronous parts of the >>>>>>> tree for later. >>>>>>> >>>>>>> Blink component >>>>>>> Blink>JavaScript >>>>>>> <https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3EJavaScript%22> >>>>>>> >>>>>>> Web Feature ID >>>>>>> import-defer <https://webstatus.dev/features/import-defer> >>>>>>> >>>>>>> Motivation >>>>>>> No information provided >>>>>>> >>>>>>> Initial public proposal >>>>>>> No information provided >>>>>>> >>>>>>> TAG review >>>>>>> No information provided >>>>>>> >>>>>>> TAG review status >>>>>>> Not applicable >>>>>>> >>>>>>> Goals for experimentation >>>>>>> None >>>>>>> >>>>>>> Risks >>>>>>> >>>>>>> >>>>>>> Interoperability and Compatibility >>>>>>> No information provided >>>>>>> >>>>>>> Gecko: Positive (https://bugzilla.mozilla.org/show_bug.cgi?id=1952263) >>>>>>> Mozilla was originally championing the proposal >>>>>>> >>>>>>> WebKit: Shipped/Shipping >>>>>>> (https://bugs.webkit.org/show_bug.cgi?id=320867) >>>>>>> >>>>>>> Web developers: No signals >>>>>>> >>>>>>> Other signals: >>>>>>> >>>>>>> WebView application risks >>>>>>> Does this intent deprecate or change behavior of existing APIs, such >>>>>>> that it has potentially high risk for Android WebView-based >>>>>>> applications? >>>>>>> No information provided >>>>>>> >>>>>>> >>>>>>> Debuggability >>>>>>> >>>>>>> Changes were added to CDP to properly support feature UX (for detailed >>>>>>> information, see https://issues.chromium.org/issues/552666773) >>>>>>> >>>>>>> Will this feature be supported on all six Blink platforms (Windows, >>>>>>> Mac, Linux, ChromeOS, Android, and Android WebView)? >>>>>>> No >>>>>>> >>>>>>> Is this feature fully tested by web-platform-tests >>>>>>> <https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>? >>>>>>> Yes >>>>>>> Test262 tests: - >>>>>>> https://github.com/tc39/test262/tree/main/test/language/import/import-defer >>>>>>> - >>>>>>> https://github.com/tc39/test262/tree/main/test/language/expressions/dynamic-import/import-defer >>>>>>> >>>>>>> Flag name on about://flags <>No information provided >>>>>>> >>>>>>> Finch feature name >>>>>>> V8Flag_js_defer_import_eval >>>>>>> >>>>>>> Rollout plan >>>>>>> Will ship enabled for all users >>>>>>> >>>>>>> Requires code in //chrome? >>>>>>> False >>>>>>> >>>>>>> Tracking bug >>>>>>> https://issues.chromium.org/issues/398218423 >>>>>>> >>>>>>> Estimated milestones >>>>>>> Shipping on desktop 155 >>>>>>> Shipping on Android 155 >>>>>>> Shipping on WebView 155 >>>>>>> >>>>>>> >>>>>>> Anticipated spec changes >>>>>>> Open questions about a feature may be a source of future web compat or >>>>>>> interop issues. Please list open issues (e.g. links to known github >>>>>>> issues in the project for the feature specification) whose resolution >>>>>>> may introduce web compat/interop risk (e.g., changing to naming or >>>>>>> structure of the API in a non-backward-compatible way). >>>>>>> No information provided >>>>>>> >>>>>>> Link to entry on the Chrome Platform Status >>>>>>> https://chromestatus.com/feature/5071131271888896?gate=6546259918848000 >>>>>>> >>>>>>> This intent message was generated by Chrome Platform Status >>>>>>> <https://chromestatus.com/>. >>>> -- >>>> You received this message because you are subscribed to the Google Groups >>>> "blink-dev" group. >>>> To unsubscribe from this group and stop receiving emails from it, send an >>>> email to [email protected] >>>> <mailto:[email protected]>. >>>> To view this discussion visit >>>> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/6fa4b7b0-2e47-47c8-8017-49409c5de18an%40chromium.org >>>> >>>> <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/6fa4b7b0-2e47-47c8-8017-49409c5de18an%40chromium.org?utm_medium=email&utm_source=footer>. >>> >>> >>> -- >>> You received this message because you are subscribed to the Google Groups >>> "blink-dev" group. >>> To unsubscribe from this group and stop receiving emails from it, send an >>> email to [email protected] >>> <mailto:[email protected]>. >>> To view this discussion visit >>> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/fb2bb9ed-4a64-455e-be6d-de19626a80c4%40chromium.org >>> >>> <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/fb2bb9ed-4a64-455e-be6d-de19626a80c4%40chromium.org?utm_medium=email&utm_source=footer>. > -- You received this message because you are subscribed to the Google Groups "blink-dev" group. 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